Can someone tell me how to make the kc interface in a different area like in godwars it says arma kills etc....

how can i make it say Tormented Demon Kc

also how do i make it if there in a certain area they will get the kc by killing the demon and if they leave it goes away and lastly how do i save the kc

I know i can search it in my server files but im kind of busy atm